根据所给单词的首字母或者汉语意思填写单词。

1． He ____（否认 ） attempting to murder the president last week．

2． I bought the dress with only 50yuan． It’s a real b_________．

3． The man tried to break into the shop during the night, but got _____（陷、困 ） in the chimney．

4． Getting high marks is not worth the ______ （ 牺牲 ） of your good reputation．

5． Water can ____ （吸收）and give off a lot of heat without big changes in temperature．

6． The Opening C_______ of the 2008 Olympic Games was splendid．

7． It is believed that these big stones were t_______ here with the help of the aliens．

8． Entering Grade Three, you should adjust some of your studying ________ （ 策略 ）．

9． The a________ temperature in summer here is about 22C．

10． “He is a little noisy, but o_______ he is a good boy,” said the mother．